Bilge-barrel-forming machine.



W. B. GODDARD.

BILGE BARREL FORMING MACHINE.

APPLIGATION TILED JULY 2,1910. RENEWED APE.21,1911.

Patented Aug. 29, 1911.

ill

lxhlimaooco oil WELLIAM B. GODDARD, OF NEW YORK, N.

BILGE-BARBEL-FOBMING MACHINE.

Specification of Letters Patent.

Patented Ange. it?

.ttpplleei'tzion llleti Int" 2, 1910, Serial No. 570,199. Renewed April 21, 1911. Serial No. 622,580.

To all whom it may concern:

Be it known that I. li [him ii i i. tionoann,

a citizen oi the United States, and a 1'csi-.

i more or less volatile liquids, suclr as gasolone, naphtha, bcnzin, alcohol, elm, and like materials, are required to he packed ton storage or shipment in hermetically sealed metal containers, which are usually of cyliin'lrical. form and called steel or metal drums. barrel, of the saint-i configuration as the well-known wooden barrel, with its bilge, is n'eferalile to the drum, but most prorfor forming: the body portion of a hilgeliarrcl from a single blank of sheet metal are attended with such ditlicultics and are so oostlythat. the interior druiii-shaped container has continued to be more generally used.

The principal object: of the present invention is the provision o1 a machine or dovice for forming or shaping the body por tion of a metal bilgrwharrel, which is simple and dependable, which sutliciently powerful to properly expand the sheet steel, and hy which these holly portions may be formed or shaped at compzu-ativcly small cost.

My invention will, be more readily under stood by reference to the accompanying i lrawings, forming a part of this s 'iecitlcalion, in which--- Figure l is a central sectional elevation of a machine or apparatus onrl'iodying my invention; Fig. is a fragmentary section of one of the inhirnal expanding segments and the lower of til 2 two actimtinn members hereinafter described; Fig. 3 a fragmentary, partly sectional and partly plan view, the section being taken at substan:

tially the middle of the machine and the plan being of the base thereof, and Fig. l is a central scc'tlonal elevation of the ex" (option of the securing nuts I).

For many reasons, a steel or metal ponders and their actuating); imichaniinn, showing a modification of the latter. Referring now to the drawings in detail, the letter A refers to a base plate resting" upon any suitable support and carrying the top or upper plate B, at a suitable distance therefrom, by means of the rods or bolts I) the ends of which are threaded tor the re- The top plate B is provided with a (cntral and circular aperture or orilicc of a diameter slightly greater than that of the cylindrical blank which it. is desired tp expand into 13 the form oi the body portion of a bilgc fl barrel. Covering this oritice is the prefer-- ably circular plate (1. secured to the plate l) by the easily removable screws (1' Said plate C is further provided, on its underside, with the annular rib or flange U. which fits snugly within the orifice in the plate B, anil thc intcrnal diameter of which is that of the desired external diameter of the harrelchime. 7t Jourualed in the base plate A, and in the plate N, underneath the plate 3; and whichwill be li'croinat'ter more t'ully described, the vertical shalt ii. carrying a pulley J at its lower end which is connected in the M usual manner with any suitable source of power. This shaft H. is provided with tho rigl1t-amlleft screwthreads S which pass through clirrespondingly threaded bores in the upper and lower wedge bloclcs G (i. th; These blocks G G are 0th truncatralconical. shape, and are held against rotation by means ofthc guii'lca'oils M M the ends ol' which are secured in the plates A and hi. it will be apparent, therefore, that upon ro tation of said shaft ll, the blocks G G may be moved to and from each other. under oppositely-disposed inclined plan s rulapted to receive the pressures of the wedgeblocks G G and he radially forced away desired to expand, whereby said cylinder mayreadily be placed over the expander,

shown in Fig. 1. The tops and bottoms of these segments E E are slidably mounted in grooves O and 0 in the plates A and N respectively, these grooves permitting radial movement only of said segments. Surrounding this internal expander, is a mold preferably made up of a plurality of segments F F, the internal face of this mold being in configuration that of the desired shape of the barrel and corresponding to the configuration of the external faceof the expander. I Each of these mold segments 1* is provided with an upper flange F and a lower flange F whereby said segment is supported against lateral movement, said lower flange F fitting within an annular groove in the lower plate A, and the upper fiange l being exteriorly supported against the rib C on the plate C.

To insert in the device the metal cylinder to be expanded, the wedge-blocks G G are separated to permit of the contraction of the segmental expander to its smallest possible diameter, and the plate C is removed. The metal. cylinder or blank P is then passed through the orifice in the plate B, d own over the expander segments E and within the mold segments F,- the removal of the top plate with its rib C permitting the blank to be easily placed in proper position. The plate C is now adjusted so that the rib C forces the tops of the mold-segments F to bind the upper end of the blank, which is to become the upper barrel gchime, firmly between the periphery of the circular plate L and the flange F of the outer mold segments F. The lower end of the blank is supported against the lower ends of the outer mold segments, and it will be seen that the blank ends, which form the barrel chimes, are now held rigidly against expansion, and that upon rfotation of the shaft H, forcing toward each other the wedge-blocks the internal expander segments E will be forced radially away from each other, stretching and forming the metal of the cylindrical blank to provide a substantially integral, metzll bilge-barrel body.

In order to reduce friction, I may provide the conical surface of the Wedge-blocks G with a plurality of seats, or sockets; for tin balls K or other anti-friction devices,

shown in Fig." 2. Furthermore, it will be apparent that means other than the wedgebi'ocks Gr may be employed for expanding the inner mold. In Fig, 4: l have shown 'a modification of these expanding means,-the

wedge-blocks G being replaced by toggle joints, the blocks R being-interiorly screw-' threaded for the reception of the threaded shaft S, with a plurality ofarms T having one end pivoted in said blocks and the other end pivoted to the segments E, whereby, as

the blocks R are forced toward each other,

due to rotation of the shaft S, the segments will be expanded in a manner similar to their expansion under action of the wedgebloeks G.

Manymodifications of minor details vof my improved machine for forming sheetchine, an expander comprising a plurality.

of separate segments, said expander having substantially the shape of the barrel-body to be formed, each of said segments being provided with oppositely disposed inclined surfaces, wedge-blocks between and common to all of said segments and cooperating with said surfaces to separate said segments radially from a common center to have the effect of expanding said former, and means for actuating said wedge-blocks.

2. A metal bilge-barrel forming machine comprising means for supporting a cylindrical sheet-metal blank and holding the ends thereof against expansion, and coiiperating internal and external formers, said internal former comprising a plurality of segments, and means for forcing said segments apart to have the effect of expanding said former. I 3. A metal bilge-barrel forming machine comprising means for supporting a cylindrical sheet-metal blank and holding the ends thereof against expansion, an external former and a complemental segmental internal former, and means for expanding said internal former; v

4. A metal bilge-barrel forming machine comprising means for supporting a cylindrical sheet-metal blank and holding the ends thereof against expansion, an external former the internal configurationof which is that of the barrel body, and an internal former comprising a plurality of separate segments, and means for separating said segments from each other to have the effect of ex anding said internal former and sym- I I -metrically expand said blank.

to be formed, each of said segments being 4 threaded through said .wedgeblocks to force provided With oppositely disposed inclined the same toward and away from'eaeh other, surfaces, Wedge-blocks between and common and means for rotating said shaft.

to all of said segments and cotiperating with WILLIAM B. GODDARD. 5 said surfaces to separate said segments radi- \Vitnesses:

ally from a common center to have the effect MABEL GODDARD,

of expanding said former, a shaft screw- ARTHUR H. GRAHAM. 

